Mounting for electric conductors



Aug,27, 1929. WRED ON 1,726,101

IOUNTING FOR ELECTI IIC CONDUCTORS Original Filed June 17, 1926 g 'fl/ F A. I 29 06 i INVENTORI Patented Aug. 27, 1929.

UNITED STATES 1,726,101 PATENT OFFICE.

WILLIAM R. EDSON, OF NEW YORK, N. Y., ASSIGNOR TO THE RUBBER SHOCK IN- SULATOR CORPORATION, OF WILMINGTON, DELAWARE, A CORPORATION OF DELA- WARE.

MOUNTING IEOR ELECTRIC CONDUCTORS.

Original application filed June 17, 1926, Serial No. 116,521. Divided and this application filed August 27,

This application is a division of my copending application Serial No. 116,521 filed June 17, 1926 relating to mountings for electrical conductors and the like, where the same are suspended from a system of poles or other means which suitably resist the elements and carry the wires at a desired height. Where wires, so mounted, are subjected to chafing and vibration, caused by windage, temperature changes, pole vibration, change in temperature of the wire due to variations of current, etc. it is found that the jacket or outer surface of the wire becomes greatly injured especially where the latter is of a softer metal, such as aluminum, and is strengthened by a steel core.

The present invention seeks to provide a mounting for conductors, particularly of the type above mentioned, which does not injure the wire, and to provide means for supporting the wire from a cross arm in a manner to prevent breaking of the wire due to continual hoisting and bending thereof at the point of support.

It is a particular object of the present invention to provide such a mounting for conductors in which an annulus of yielding non-metallic material is maintained, preferably under internal static pressure, within a housing carried with a cross arm, the core of the wire being supported directly by the yielding non-metallic material, and the current carrying jacket thereby relieved of strains set up at the point of connection.

The invention will now be described in greater detail, reference being had to the accompanying drawings, wherein:

Figure 1 is a front elevation of a form of the invention.

Figure 2 is a section taken along the line 22 of Figure 1 and looking in the direction of the arrows.

In the drawings, a represents the cross arm of a pole, tower or other structure from which a transmission line may be suspended. To the arm a, a bracket 6 is secured, as by bolts 0. The bracket 6 is formed with an annular or ring-shaped housing 11 comprising two sections separated in a horizontal plane as at z". A cover j, likewise of two sections but joined along a vertical plane j, is connected to the housing by means of cooperating ears on the respective pieces and bolts, as indicated at is.

Within the housing, and preferably com- Serial No. 215,818.

pressed by the cover, is a rubber annulus Z of a cross section shown particularly in Figure 2. The annulus is composed of two sections divided along the line Z corresponding to the division of the housing 71. It will be noted that the rubber annulus or block is formed with a hole which is preferably oil center or eccentric with respect to the center of the housing.

The rubber annulus is adapted to engage the core h of a cable, the jacket of which is shown at h, and which may be removed from the core at the point of support so that the cable may be supported wholly from its core. In practice, the jacket is of aluminum or other material of high conductance and light weight, while the core is of steel to provide the necessary strength. By sup porting the cable solely through its core, the current carrying jacket is relieved of the strains set up at the point of connection and performs only the function of carrying the current.

It will be apparent that the mounting herein described can be applied to a cable at desired points without requiring slipping on at the end of the wire, as would be required if a solid mounting were provided, on account of the formation of the annulus and housing in split sections. By forming the annulus with the hole, through which the core of the cable passes, 01f center, a greater mass of rubber is provided at Z below the Wire, than at Z above the wire. This added mass provides a greater cushioning action at the point where the weight of the wire is normally applied. The shape of the housing, the annulus maintained therein, and the hole in the annulus may be varied to meet the demands for mounting bars or wires of any shape or size. The structure disclosed herein may be varied in other obvious ways to meet the needs of different problems, and no limitations is intended upon the scope of the invention except as indicated in the appended claims.

What I claim is:

1. Means for supporting a wire comprising a supporting means, an apertured housing carried thereby, an apertured cover plate therefor, a non-conducting cushioning element carried by and at least in part within the housing and provided with an aperture through which the wire may pass, and means to secure the cover plate to the housing and to set up and retain a degree of initial compression in the cushioning element.

2. Means for supporting a wire comprising a supporting member, an apertured housing carried thereby, a non-conducting yielding cushioning element carried by and at least in part within the housing and apertured to receive the wire, and means to place the cushioning means under initial compression. v

3. Means for supporting a Wire comprising a supporting member, a split housing carried thereby, a split cover plate for the housing, non-conducting cushioning means for the wire carried at least in part within the housing, and means to secure the cover plate to the housing and to set up a degree of compression in the cushioning means.

i. Means for supporting a wire comprising a supporting member, a split housing carried thereby, a split cover plate for the housing, a split non-conducting cushioning element for the wire carried at least in part within the housing, and means to secure the cover plateto the housingand to set up a degree of compression in the cushioning means, said housing and said cover plate being split in different planes.

5. Means for supporting a wire comprising a supporting member, a split housing carried thereby, a split cover plate for the housing, a split non-conducting cushioning element for the wire carried at least in part within the housing, and means to secure the cover plate to the housing. and to set up a degree of compression in the cushioning means, said housing, cover plate, and

cushioning elementbeing apertured for the passage therethrough ofthe wire, and said housing and said cover plate being split in different planes.

6. Means for sup-porting a wire comprisin a supporting member, a split housing carried thereby, a split cover plate for the housing, a split non-conducting cushioning element for the wire carried at least in part Within the housing, and means to secure the coverplate to the housing and to set up a degree of compression in the cushioning means, said housing, cover plate, and cushioning element being apertured for the passage therethrough of the wire, the center of the aperture in the cushioning element being eccentric with respect to the center of the apertures in the housing and the cover plate to provide a greater mass of cushioning material below the point of support of the wire, and said housing and said cover plate being split in dififerent planes.

7. A support comprising in combination four semi-annular equal pieces having hollowed out interior faces, the part of larger periphery extending inwardly more than the part of smaller periphery, means to clamp the pieces together with the interior faces opposed, an annular block of yielding material seated in the hollowed out portions, the interior periphery of the block being less than the smaller periphery of the pieces, and means mounting one of the pieces on a supporting element.

This specification signed this 19th day of August, A. D. 1927.

WILLIAM R. EDSON. 

